<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        class Cat {
            constructor(name, color) {
                this.name = name;
                this.color = color;
            }
            static hello = "你好"
            static isCat(arg) {
                if (arg.constructor == Cat) {
                    return true;
                }
                return false
            }
            say() {
                console.log(this.name, this.color);
            }
            satHello() {
                console.log("hello");
            }
        }



        class Orange extends Cat {
            constructor(name, color, gbody) {
                super(name, color)
                this.gbody = gbody
                // console.log(this.gbody);
            }

            static x = "this.gbody"
            say() {
                console.log(name, color);
            }
            sayHello() {
                console.log("我还能吃");
            }



        }


        var x = new Orange("1", "2", "3")
        console.log(Orange.x);


    </script>
</body>

</html>